AI Article Synopsis

  • New brain-computer-interface (BCI) technology offers significant improvements in efficiency, featuring a thin and flexible micro-electrocorticography (μECoG) device with 256x256 electrodes.
  • This innovative device integrates advanced components, allowing for the recording of up to 1024 brain signals simultaneously, all while being fully implanted and wirelessly powered.
  • Successful tests in pigs and non-human primates demonstrated its ability to record brain activity reliably for extended periods, achieving high-quality data from critical brain areas related to sensory and motor functions.*

Article Abstract

Minimally invasive, high-bandwidth brain-computer-interface (BCI) devices can revolutionize human applications. With orders-of-magnitude improvements in volumetric efficiency over other BCI technologies, we developed a 50-μm-thick, mechanically flexible micro-electrocorticography (μECoG) BCI, integrating 256×256 electrodes, signal processing, data telemetry, and wireless powering on a single complementary metal-oxide-semiconductor (CMOS) substrate containing 65,536 recording and 16,384 stimulation channels, from which we can simultaneously record up to 1024 channels at a given time. Fully implanted below the dura, our chip is wirelessly powered, communicating bi-directionally with an external relay station outside the body. We demonstrated chronic, reliable recordings for up to two weeks in pigs and up to two months in behaving non-human primates from somatosensory, motor, and visual cortices, decoding brain signals at high spatiotemporal resolution.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11118429PMC
http://dx.doi.org/10.1101/2024.05.17.594333DOI Listing

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